Home / 159,258.42-219,786.39-87,654.24

Finding the Fourth Proportional to 159,258.42, 219,786.39 and 87,654.24

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Solution

The fourth proportional to 159,258.42, 219,786.39 and 87,654.24 is: 120,968.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,258.42 : 219,786.39 = 87,654.24 : x
  2. Step 2: Convert to fraction form
    159,258.42/219,786.39 = 87,654.24/x
  3. Step 3: Cross multiply
    159,258.42x = 219,786.39 × 87,654.24
  4. Step 4: Simplify right side
    159,258.42x = 19,265,208,977.79
  5. Step 5: Solve for x
    x = 19,265,208,977.79/159,258.42
  6. Step 6: Final answer
    x = 120,968.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.